I've been using the Barnes XLC, 180gr FB bullet for 5 years now, in .308. Taken four elk. I've been very happy with their performance and would recommmend them. Perhaps because I use .308 instead of some magnum monster, none of my bullets have passed through yet. Still, well placed shots dropped them. The bullet below dropped a massive herd cow last year, running full bore about 60 yards away. She dropped in a heap (double lung) and I ended it with a 135gr Nosler 10mm at 2 feet to the head. Bullet was recovered on the far side, behind the shoulder and partially lodged in the hide. Velocity would have been around 2450 fps at that range, so the '06 may have enough to get through. Rifle was a Weatherby Vanguard 1:12 4 groove. Nikon Monarch Gold 2.5x10 scope.
I'm considering a deeper penetrating bullet this year, either the 180gr Fail Safe, 180gr Partition Gold, or 220gr Partition, all of which penetrated deeper in my tests. (wet phone books, nothing real scientific). But, it ain't broke either, so I may stand pat and take the blue Barnes.
Tom